In case you missed the big announcement, Grant will play The Flash/Barry Allen in the backdoor pilot and potential spinoff.

The character’s official description: Barry Allen is a Central City assistant police forensic investigator who arrives in Starling to look into a series of unexplained robberies that may have a connection to a tragedy in his past. A comic book fan boy, Barry is obsessed with the Arrow unaware that working with Oliver (Stephen Amell) and Felicity (Emily Bett Rickards) to solve the crime has brought him right into the dangerous world of the vigilante.